Glass drilling machine



Dec. .1, 1931.

E. H. HANSEN GLASS DRILLING MACHINE Filed July 12, 1923 INVENTOR.

Patented Dec; 1, 1931 UNITED STATES PATENT OFFICE EDWARD H. HANSEN, OFCHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO JOHNSON FARE BOXCOMPANY, OF GHICAGO, ILLINOIS, A. CORPORATION OF NEW YORK Applicationfiled July 12,

My invention relates to glass drilling machines of the portable type foruse where-a hole is required in glass already in place.

The objects of my invention are first, to provide a machine that isself-contained and light to handle, second to afl'ord facilities forretaining the carborundum solution required in a tool of this kind, andthird, to provide a suitable support for the glass to be drilled withoutremoving said glass from its frame or other attached parts.

I attain these objects by the simple and inexpensive mechanismillustrated in the accompanying drawings, in which- Figure 1 is a sideelevation shown partly in section and Figure 2 is an end elevation.

Similar numerals refer to similar parts in,

both views.

The casting 1 constitutes frame or body of the machine, and I prefer tohave it incorporate the following features, a. head as shown at A toprovide support for the screw 2, yoke B designed to straddle the edge ofa pane of glass enabling the operator to place the cutting tool 3 anywhere desired with respect to one face of said glass, a hollow chamberas at C to retain the grinding carborundum and water used in thedrilling operation, inlet and outlet openings which can be plugged withcommon corks 4:-

and 5, respectively,a suitable extension as shown at .D-to retainrenewable bearing 6 and felt packing 7, a face as shown at'fE to whichis attached a rubber gasket '8, the rib as shown at F adds strengthwithout excessive weight. The glass 9 is supported by the pressure plate10 and rubber gasket 11 propv erly clamped in place by the screw 2. The

actual cutting of the glass is accomplished as will readily be seen byanyone versed in the art, by rotating the standard cutting tool 3 byattaching an ordinary electric drill or hand brace at the outer end G ofthe cutter 3, maintaining a slightpressure against the glass '9.

Itwillbe obvious to those skilled in the 'art that the invention issusceptible to va- GLASS DRILLING MACHINE 1923. Serial No. 651,027.

the particular construction or arrangement of parts herein illustrated,except Where limitations appear in the appended claims.

I claim: 8 A device of the character described comprlsing a rotary toolhaving narrow radially disposed abrasive working faces, a cylindricalhousing in which the tool is revoluble and being open at one end forprojection of said radial faces, a support for holding said housing withits open side against the face of a work-piece, including a clampingplate held against the side of the said work-piece opposite from saidhousing, means for supplying a liquid abrasive to the working faces ofthe tool, a seal between both sides of the work-piece and the contiguousparts of the housing and said clamping part for preventing leakage ofthe liquid abrasive, and means for rotating the tool and feeding itaxially.

2. A glass cutter comprising a support having a hollow head providedwith an opening and having a clamping member adjacent the opening, saidhead being closed to confine an abradant when the cutter is in use, acooperating clamping member,'a yoke carried ber, a yoke carried by oneof said clamping members, and a hollow cutter rotatably mountedin saidhead, the clamping member carried by the support having a cushionsurface to form sealing contact with the glass.

4. A glasscutter comprising a support having a hollow head provided withan opening and havinga clamping member adjacent the opening, acooperating clamping member, a yoke carried by one of said clampingmembers, and a hollow cutter rotatably mounted in said head, the twoclamping members having cushion glass-engaging surfaces. k

.5. A portable glass cutter comprising a bodymember having a hallow headclosed to confine an abradant for glass cutting purnected'withthe bodymember and adapted to poses when the tool is inu'se, acutteirotatablymounted in said head, the head havin a working opening-for the cutter,and a yo e connected with the body member and having an opposing partspaced from the head and adapted to receive the glass edgewise for out,adapted to be clamped against opposite" sides ting purposes.

6. A portable glass cutter comprising." a. A body member having a hollowhead close to confine an abradant for glass cutting purposes when thetool is in'use, a cutter rotatably mounted in said head, the head havinga I working openingfor the cutter, :a yoke con,- j

receive the glass in edgewise relation, and means cooperatin with theyoke for-clampin the glass in p face during the cutting act. 5 A' devicefor cutting, an annular hole through a glass windshield comprising ar0.- tary, abrasive-working tool; a housing therefor, providing a holderfor ,the abrasive material, means for supportinf said. housing on awindshield with the tool in operative rela.-'

" tion thereto, and means/for revolving the tool; i 8. A,device forcutting an annular holef through a glass windshield comprising arotary', abraslvelworking' tool, a housin there-, for, providing aholder for'the abrasive material, means for supporting'said housing on awindshield withthe tool in operative relaition thereto, means forrevolving the tool,

and means for preventing leakage of the abrasive material from bothsides of the in operative position on one side of a workpiece, saidhousing providing a liquid-abrasive holder, a seal between the housingand contiguous face of the work-piece-for preventing'leakage of theabrasive, and means for rotating the tool;

'1 11. A device forcutting a hole through a work-piece of refractorymaterial comprising a rotary abrasive-working tool, a holder thereforhaving parts adapted to be clamped on opposite sides of the work-piece,means for supplying a liquid abrasive to the working faces of the, tool,resilient means interposed between said parts and each contiguous side I7 of the work-piece circumscribing the area to be cut and providinleakage of the abrasive fromeithex side of a seal for preventing througha work-piece bylan' abradin thelwork-piece, and means :for revolvingtthetoo z '12. A device for cutting a hole through a plate of refractorymaterial comprising a r0- tary abrasive-workin tool, a'housing thereforproviding "an-"a rasive holder, means of. said plate for-holding thetoolin operative position. and having rubber seats agalnst said platecircumscribing the area to be cut, and

means for revolving the-tool.- 1

'. 13. A-- de'vie' for cutting. an annular hole action comrisin'garotary too i ana ra'siveng' face adapted for cutting a narrowannular-slot, means for holding the tool in operative position at oneside of the workplece including a clamping late at the side or thework-piece opposite row the rotary tool and overlying the area to be cutmeans for suptplying liquid abrasive to said tool,

means or preventing leakage of said abrasive from either side of thework-piece, and

means for revolving the tool. 4

'14. A portable glass cutter for cutting circular openings-in a sheet ofglass, comprising an open ended housing adapted to bear againstthe-sheet of glass being operated upon, a rotatable cutter mountedwithin the confines of said housing; a support mounted adjacentsaid'housin against the other si e of the s eet ofmaterial beingoperated upon, a yoke connecting the housing and su port and mea'ns foradj ustin the support re ative to the housing,

substantially as described.

' EDWARD H. HANSEN.

and ada tedto bear

